6813222 has 32 divisors (see below), whose sum is σ = 14823648. Its totient is φ = 2075136.

The previous prime is 6813199. The next prime is 6813227. The reversal of 6813222 is 2223186.

It is a junction number, because it is equal to n+sod(n) for n = 6813192 and 6813201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6813227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8428 + ... + 9200.

It is an arithmetic number, because the mean of its divisors is an integer number (463239).

Almost surely, 2^6813222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6813222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7411824).

6813222 is an abundant number, since it is smaller than the sum of its proper divisors (8010426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6813222 is a wasteful number, since it uses less digits than its factorization.

6813222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904.

The product of its digits is 1152, while the sum is 24.

The square root of 6813222 is about 2610.2149336788. The cubic root of 6813222 is about 189.5763599040.

The spelling of 6813222 in words is "six million, eight hundred thirteen thousand, two hundred twenty-two".